Manufacture op patty acids



Patented Feb. 26, 1929. 1,703,129

UNITED STATES PATENT OFFICE.

HERMANN WEYLAND AND STANISLAUS D'EICHSEL, F ELBERFELD, GERMANY, AS-

SIGNORS, BY MESNE ASSIGNMENTS, TO WINTHROP CHEMICAL COMPANY, IN 0., OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

MANUFACTURE OF FATTY ACIDS.

No Drawing". Application filed April 4, 1925, Serial No. 20,852, and in Germany April 11, 1924.

Our invention relates to the manufacture The acetic acid is driven off With steam and and production of edible fats derived from the raW mixture is purified and distilled in fatty acids having an odd number of carbon vacuo. The fraction bolllng at l401 7 0 (1.. atoms. They are obtained by converting the under a pressure of 10 mm. being for the acids Which are contained in the fraction of greatest part undecyl and tridecyl acid 18 cs 50 raw cocinic acids or palm oil fatty acids boilterified With glycerine. The ester is made ing under a pressure of min. at a temperaneutral and distilled over wlth steam. 1n ture of about 163480 G. into their methyl vacuo. The resultlng fat is odorless and ketones, treating the ke'tones with an oxidiztasteless. Itanelts at about C. and is a 10 ing agent and converting the resulting IniX- mixture of trlundecyl and trldecyl glyceride. tui'es of fatty acids in the usual Way into In an analogous Way the other fats are obtheir glycol and glycerin esters. tamed e. g. from palm oil fatty acids, etc.

The resulting products have proved to be a F r0111 palm 011 fatty acids the triundecyl acid useful food fofhuman beings sufferings from glyceride results.

15 'li b t s, We Wish it to be understood that in the (so Ewampza process claimed hereinafter one may use as starting material instead of the fraction of Raw cocl-Tllc acids: (0060a are raw cocinic acids, the corresponding fraction tilled in vacuo i. 0. (under a pressure of 10 f l 11 m 20 mm.) and the fraction boiling fronn163 to r 1 i separated. pill'tS Weight OT The process which Consisfg in Convertthis fraction are mixed With 150 parts by i i t th i th pk t th f tt id Weight of glacial acetic acid and led at 45500 contained in the fraction of the raw cocinic over pumice stone impregnated with thorium id b ili under a pressure f 1 nun t 9,5 oxide: 002 and 2 being g g a temperature of about 163-180 (l, treatmixture of methyl ketones is obtained which i th k t th bt i d ith an dmin Vii-C110 under Z], plGSSlll'G agent and onverting the resulting 'nixmm. The fraction boiling from 13 F160 is tures i t th l b j l h l esterg a mixture of methyl-undecyland methyl- 2 Th d t hi h i bt i bl b tridecyl-ketol'ie. verting into their methyl-ketones the fatty Parts y Weigh-l3 of this mixture treat acids contained in the fraction of the raiv ed with a mixture of Parts y Welght of cocinic acids boiling under a pressure of 10 sodium bichrornate, 300 parts by Weight of at a t tfi f b fi 1 3 1 Q sulfuric acid an d 300 parts by eight of Water t ti th ketoneg th bt i d ith an 35 a about 1 T 'Q 9 F oxidizing agent and converting; the resulting so cording to the following equations (1n whlch i t r into the polybasic alcohol esters. the subscript a represents the numeral 9 or I t ti h f We h hgreunto t 11) our hands. 1. CH3. CH ..cI-I2.c0oI-I 011 00011:

on (CH2) flcnacoens (:02 H20 4.0 2.) CH .(CH n)CH .CO.CIl +NaHCr O +4H SO HERMANN WEYLAND,

crn. 01-1 "coon cr-ncoon NaHSO cison 43120 STANISLAUS DEICHSEL. Thus for example 1. ornacrnncmcoorr +cn..coor1= en eumerncocng co: 1-1 0 2. CH3. on?)acrncocri3 NaHCr O arse.

CH3. ennoeoon cn eoon Nansoi 45 Crusoe a 4H4) 

